Clinical features and risk factors of postoperative in-hospital mortality following surgical repair of Stanford type A acute aortic dissection

Table 3 Significant risk factors of postoperative in-hospital mortality identified by multivariate logistic regression analysis in patients with AAD

Variable	B	SE	Wald X²	P	OR	95% CI
Age > 65years	0.023	0.099	4.212	0.040	1.009	1.005–1.421
Cardiac insufficiency	0.876	0.232	2.123	0.082	2.114	0.652–7.314
Renal insufficiency	1.121	0.343	6.335	0.011	5.273	2.158–19.439
D-dimer ≥ 5.00 mg/L	1.331	0.334	2.210	0.119	2.156	0.869–9.312
Cardiopulmonary bypass time ≥ 250 min	0.872	0.224	5.876	0.010	6.938	2.231–18.810
Operative time ≥ 7.50 h	2.221	0.876	1.223	0.183	2.254	0.815–8.122
Blood transfusion volume ≥ 3.0 L	1.321	0.123	2.186	0.097	2.117	0.814–8.216
Postoperative hemostasis	3.121	0.667	5.271	0.025	3.807	1.128–10.935

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